| Abstract: | The Baid ad Jimalah tungsten deposit in Saudi Arabia consists predominantly of swarms of steeply dipping, subparallel, tungsten-bearing quartz veins and of less abundant, smaller stockwork veins. It is spatially, temporally, and genetically associated with a 569 Ma, highly differentiated, porphyritic, two-feldspar granite that intrudes Late Proterozoic immature sandstones. Baid al Jimalah is similar in character and origin to Phanerozoic tungsten-tin greisen deposits throughout the world, especially the Hemerdon deposit in Devon, England. It is also analogous to Climax-type molybdenum deposits, which contain virtually identical mineral assemblages, but with the relative proportions of molybdenum and tungsten mineralization reversed, primarily owing to differences in oxygen fugacity. This similarity in mineralization styles and fluid histories indicates that metallogenic processes in granite-related deposits in the late Precambrian were similar to those seen in the Phanerozoic. -from Authors |
| Genre: | Article |
| ProdID: | 70017871 |
| Citation Author: | Kamilli, R. J.; Cole, J. C.; Elliott, J. E.; Criss, R. E. |
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| Citation End Page: | 1767 |
| Citation Issue: | 7 |
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| Citation Language: | English |
| Citation Larger Work Title: | Economic Geology |
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| Citation Number Of Pages: | 25 |
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| Citation Search Results Text: | Geology and genesis of the Baid al Jimalah tungsten deposit, Kingdom of Saudi Arabia; 1993; Article; Journal; Economic Geology; Kamilli, R. J.; Cole, J. C.; Elliott, J. E.; Criss, R. E. |
| Citation Start Page: | 1743 |
| Citation Volume: | 88 |
| Citation Year: | 1993 |
| Type: | citation/reference |
| Text: | Geology and genesis of the Baid al Jimalah tungsten deposit, Kingdom of Saudi Arabia; 1993; Article; Journal; Economic Geology; Kamilli, R. J.; Cole, J. C.; Elliott, J. E.; Criss, R. E. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Fri, 1 Jan 1993 00:00 -0600 |
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